US5918093A - Developing solution supplying system for wet type developer - Google Patents
Developing solution supplying system for wet type developer Download PDFInfo
- Publication number
- US5918093A US5918093A US09/088,484 US8848498A US5918093A US 5918093 A US5918093 A US 5918093A US 8848498 A US8848498 A US 8848498A US 5918093 A US5918093 A US 5918093A
- Authority
- US
- United States
- Prior art keywords
- ink cartridge
- developing solution
- mixing tank
- supplying system
- wet type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G15/00—Apparatus for electrographic processes using a charge pattern
- G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
- G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
- G03G15/104—Preparing, mixing, transporting or dispensing developer
Definitions
- the present invention relates to a developing solution supplying system for a wet type developer, and more particularly, to a developing solution supplying system for a wet type developer having an improved agitator for maintaining solution in an evenly distributed concentration.
- a wet type developer develops a latent image by supplying a developing solution to a photosensitive medium, such as a photosensitive belt, on which an electrostatic latent image is formed.
- the wet type developer includes a developing unit for supplying the developing solution to the photosensitive medium, and a developing solution supplying system for continuously supplying a developing solution having a toner concentration within a predetermined range to the developing unit.
- the developing solution has a toner concentration of approximately 3-5 wt %. This concentration is achieved by mixing an undiluted ink solution having a powder toner concentration of about 9-10 wt %, with a liquid carrier.
- the developing solution supplying system includes an ink cartridge for storing the undiluted ink solution, a carrier storage tank for storing the liquid carrier, and a mixing tank for mixing the undiluted ink solution with the liquid carrier at a predetermined ratio.
- An agitator for agitating the powder toner to prevent it from settling out of the solutions stored in the ink cartridge and the mixing tank, is installed in each of the ink cartridge and the mixing tank.
- the number of components constituting the system is disadvantageously large since independent agitators are separately installed in each of the ink cartridge and the mixing tank. Further, when numerous colors of ink are used, such as in a color laser printer for example, the required number of agitators is at least twice the number of colors of ink. Thus, the structure of the system is complicated.
- a developing solution supplying system for a wet type developer having an improved agitator for agitating a solution in an ink cartridge or a mixing tank.
- a developing solution supplying system for a wet type developer comprises: an ink cartridge for storing ink, a carrier storage tank for storing liquid carrier; and a mixing tank which stores a developing solution obtained by mixing the ink in the ink cartridge with the carrier in the carrier storage tank in a predetermined ratio.
- the mixing tank is located adjacent to the ink cartridge having a bulkhead therebetween.
- a first agitating blade is rotatably installed in the mixing tank, and a second agitating blade is rotatably installed in the ink cartridge opposite the first agitating blade.
- An actuator, separated from the first and second agitating blades, is provided for imparting interlocking rotation to the first and second agitating blades.
- the agitator comprises a shaft which in rotatably installed through the bulkhead such that a first end of the shaft is provided in the mixing tank and a second end of the shaft is provided in the ink cartridge.
- a sealing member seals the portion of the bulkhead through which the shaft penetrates.
- a first agitating blade is installed on the first end of the shaft, and a second agitating blade is installed on the second end of the shaft.
- An actuator is provided to impart rotation to one of the first and the second agitating blades.
- FIG. 1 illustrates a first embodiment of a developing solution supplying system according to the present invention
- FIG. 2 illustrates a second embodiment of a developing solution supplying system according to the present invention.
- a first embodiment of the present developing solution supplying system includes an ink cartridge 10 filled with an ink I of a predetermined color, and a carrier storage tank 20 filled with a liquid carrier C.
- a mixing tank 30 is provided adjacent the ink cartridge 10 with a bulkhead 60 provided therebetween.
- the mixing tank 30 stores a developing solution T obtained by mixing the ink I from the ink cartridge 10 with the liquid carrier C from the carrier storage tank 20 in a predetermined ratio.
- An agitator is installed to agitate the ink I and developing solution T stored in the ink cartridge 10 and the mixing tank 30, respectively.
- the agitator comprises first agitating blades 31 and 33 rotatably installed in the mixing tank 30, and a second agitating blade 11 rotatably installed in the ink cartridge 10 opposite the first agitating blades 31 and 33. Accordingly, the bulkhead 60 is located between the second agitating blade 11 and the first agitating blades 31 and 33.
- the first and second agitating blades 31, 33 and 11 are made of a material which can be magnetized by a magnetic force.
- An actuator is installed separated from the first and second agitating blades 31, 33 and 11.
- the actuator includes a magnet member 51 facing the first agitating blades 31 and 33 and a driving motor 50 for rotating the magnet member. In this way, the first and second agitating blades 31, 33 and 11 are interlockingly rotatable.
- the first agitating blades 31 and 33 are rotated by a magnetic force of the magnet member 51.
- the second agitating blade 11 is also rotated by the magnetic force of the first agitating blades 31 and 33. That is, when the magnet member 51 rotates, the first agitating blades 31 and 33 and the second agitating blade 11 are rotated in an interlocked fashion.
- Such an interlocked rotation of the first and second agitating blades 31, 33 and 11 agitates the solutions contained in the mixing tank 30 and the ink cartridge 10. Accordingly, the powder toner does not settle out of the solutions and a constant concentration distribution is maintained.
- the developing solution supplying system can simultaneously rotate the first and second agitating blades 31, 33 and 11 in the mixing tank 30 and the ink cartridge 10, respectively, via a single driving source.
- the magnet member 51 is installed to drive the first agitating blades 31 and 33.
- the second agitating blade 11 may be driven to rotate the first agitating blades 31 and 33.
- Reference numerals P1, P2 and P3 each denote a pump for pumping respective solutions through a predetermined passage
- reference numeral V denotes a valve for supplying a developing solution pumped from the mixing tank 30 to a developing unit 40 or for selectively returning the pumped developing solution to the ink cartridge 10.
- Reference numeral 41 denotes a supply line for supplying the developing solution T to the developing unit 40
- reference numeral 100 denotes a photosensitive belt.
- FIG. 2 illustrates a second embodiment of a developing solution supplying system according to the present invention.
- An agitator according to the present embodiment further includes a shaft 32 rotatably installed through the bulkhead 60 so that one end of the shaft 32 is provided in the mixing tank 30 and the other end of the shaft 32 is provided in the ink cartridge 10.
- a sealing member i.e., an O-ring 61, is provided for sealing the portion of the bulkhead 60 through which the shaft 32 penetrates.
- the first agitating blades 31 and 33 are installed on the end of the shaft 32 in the mixing tank 30, and the second agitating blade 11 is installed on the end of the shaft 32 in the ink cartridge 10.
- the magnet member 51 and the driving motor 50 for rotating the first agitating blades 31 and 33 are the same as those in the first embodiment.
- the first agitating blades 31 and 33 are formed of a magnetizable material which can be rotated by the magnetic force of the magnet member 51.
- the first agitating blades 31 and 33 are rotated by the magnetic force of the magnet member 51.
- the shaft 32 is rotated together with the first agitating blades 31 and 33.
- the second agitating blade 11 fixed to the end of the shaft 32 in the ink cartridge 10 is also rotated. Therefore, in the developing solution supplying system according to the second embodiment, the first and second agitating blades 31, 33 and 11 in the mixing tank 30 and the ink cartridge 10, respectively, are simultaneously rotated by a single driving source.
- the ink cartridge 10 and the mixing tank 30 can be manufactured as separate members and then assembled together. It is preferable that these components facilitate the replacement thereof.
- the developing solution supplying system can simultaneously agitate the solutions in an ink cartridge and a mixing tank using a single driving source.
- the number of parts can be reduced, and the structure of an entire developer can be simplified.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Wet Developing In Electrophotography (AREA)
Abstract
Description
Claims (8)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019970041611A KR100234283B1 (en) | 1997-08-27 | 1997-08-27 | Developing solution supplying system for wet type developer |
KR97-41611 | 1997-08-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
US5918093A true US5918093A (en) | 1999-06-29 |
Family
ID=19518899
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/088,484 Expired - Fee Related US5918093A (en) | 1997-08-27 | 1998-06-02 | Developing solution supplying system for wet type developer |
Country Status (3)
Country | Link |
---|---|
US (1) | US5918093A (en) |
KR (1) | KR100234283B1 (en) |
CN (1) | CN1109936C (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6236825B1 (en) * | 1998-11-26 | 2001-05-22 | Ricoh Company, Ltd. | Image forming apparatus including liquid-type developing device |
US6324367B1 (en) * | 1998-09-19 | 2001-11-27 | Samsung Electronics Co., Ltd. | Reversible pump and system for supplying developer in a liquid electrophotographic printer using the same |
US20030164985A1 (en) * | 2002-02-21 | 2003-09-04 | Samsung Electronics Co., Ltd. | Liquid developing unit using high density ink |
US6650856B2 (en) * | 2001-02-06 | 2003-11-18 | Samsung Electronics Co., Ltd. | Liquid electrophotographic printer and printing method |
US20040009610A1 (en) * | 1999-04-29 | 2004-01-15 | The University Of Wyoming Research Corporation D/B/A Western Research Institute | Organic contaminant soil extraction system |
US20050272146A1 (en) * | 2004-06-04 | 2005-12-08 | Geoffrey Hodge | Disposable bioreactor systems and methods |
US20070019502A1 (en) * | 2005-03-28 | 2007-01-25 | Becton, Dickinson And Company | Combination vertical and lateral flow immunoassay device |
US20070052768A1 (en) * | 2005-09-02 | 2007-03-08 | Canon Kabushiki Kaisha | Liquid Container |
US20070052773A1 (en) * | 2005-09-02 | 2007-03-08 | Canon Kabushiki Kaisha | Liquid container |
US20070052771A1 (en) * | 2005-09-02 | 2007-03-08 | Canon Kabushiki Kaisha | Ink tank and recording apparatus using ink tank |
US7211430B2 (en) * | 2001-08-03 | 2007-05-01 | Becton, Dickinson And Company | System for stirring growth medium |
US7432033B2 (en) | 2004-10-31 | 2008-10-07 | Samsung Electronics Co., Ltd. | Printing systems and methods for liquid toners comprising dispersed toner particles |
US20150210012A1 (en) * | 2012-07-30 | 2015-07-30 | Dws S.R.L. | System and Method for Mixing a Stereolithography Resin |
EP2670599A4 (en) * | 2011-01-31 | 2017-01-11 | Hewlett-Packard Development Company, L.P. | Printing systems utilizing inks with high solids content |
WO2019230985A1 (en) * | 2018-06-01 | 2019-12-05 | キヤノン株式会社 | Image forming device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3876282A (en) * | 1972-05-05 | 1975-04-08 | Kalle Ag | Container for a supply of liquid developer |
US5451987A (en) * | 1989-10-02 | 1995-09-19 | Imaje | Ink circuit particularly intended to pressurize a pigment ink for an ink jet printer |
US5530529A (en) * | 1994-12-21 | 1996-06-25 | Xerox Corporation | Fluid sensing aparatus |
US5539503A (en) * | 1994-12-19 | 1996-07-23 | Hewlett-Packard Company | Magnetic drive for a liquid toner cartridge and the liquid supply system for the cartridge |
US5816058A (en) * | 1994-11-17 | 1998-10-06 | Lg Electronics Inc. | Device for magnetically treating water |
-
1997
- 1997-08-27 KR KR1019970041611A patent/KR100234283B1/en not_active IP Right Cessation
-
1998
- 1998-06-02 US US09/088,484 patent/US5918093A/en not_active Expired - Fee Related
- 1998-06-11 CN CN98109827A patent/CN1109936C/en not_active Expired - Fee Related
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3876282A (en) * | 1972-05-05 | 1975-04-08 | Kalle Ag | Container for a supply of liquid developer |
US5451987A (en) * | 1989-10-02 | 1995-09-19 | Imaje | Ink circuit particularly intended to pressurize a pigment ink for an ink jet printer |
US5816058A (en) * | 1994-11-17 | 1998-10-06 | Lg Electronics Inc. | Device for magnetically treating water |
US5539503A (en) * | 1994-12-19 | 1996-07-23 | Hewlett-Packard Company | Magnetic drive for a liquid toner cartridge and the liquid supply system for the cartridge |
US5530529A (en) * | 1994-12-21 | 1996-06-25 | Xerox Corporation | Fluid sensing aparatus |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6324367B1 (en) * | 1998-09-19 | 2001-11-27 | Samsung Electronics Co., Ltd. | Reversible pump and system for supplying developer in a liquid electrophotographic printer using the same |
US6236825B1 (en) * | 1998-11-26 | 2001-05-22 | Ricoh Company, Ltd. | Image forming apparatus including liquid-type developing device |
US20040009610A1 (en) * | 1999-04-29 | 2004-01-15 | The University Of Wyoming Research Corporation D/B/A Western Research Institute | Organic contaminant soil extraction system |
US6650856B2 (en) * | 2001-02-06 | 2003-11-18 | Samsung Electronics Co., Ltd. | Liquid electrophotographic printer and printing method |
US7211430B2 (en) * | 2001-08-03 | 2007-05-01 | Becton, Dickinson And Company | System for stirring growth medium |
US20030164985A1 (en) * | 2002-02-21 | 2003-09-04 | Samsung Electronics Co., Ltd. | Liquid developing unit using high density ink |
US6850724B2 (en) * | 2002-02-21 | 2005-02-01 | Samsung Electronics Co., Ltd. | Liquid developing unit using high density ink |
US7629167B2 (en) | 2004-06-04 | 2009-12-08 | Xcellerex, Inc. | Disposable bioreactor systems and methods |
US20050272146A1 (en) * | 2004-06-04 | 2005-12-08 | Geoffrey Hodge | Disposable bioreactor systems and methods |
US7432033B2 (en) | 2004-10-31 | 2008-10-07 | Samsung Electronics Co., Ltd. | Printing systems and methods for liquid toners comprising dispersed toner particles |
US20070019502A1 (en) * | 2005-03-28 | 2007-01-25 | Becton, Dickinson And Company | Combination vertical and lateral flow immunoassay device |
US7621627B2 (en) * | 2005-09-02 | 2009-11-24 | Canon Kabushiki Kaisha | Liquid container |
US20070052771A1 (en) * | 2005-09-02 | 2007-03-08 | Canon Kabushiki Kaisha | Ink tank and recording apparatus using ink tank |
US7618136B2 (en) * | 2005-09-02 | 2009-11-17 | Canon Kabushiki Kaisha | Ink tank and recording apparatus using ink tank |
US20070052768A1 (en) * | 2005-09-02 | 2007-03-08 | Canon Kabushiki Kaisha | Liquid Container |
US20070052773A1 (en) * | 2005-09-02 | 2007-03-08 | Canon Kabushiki Kaisha | Liquid container |
US7708394B2 (en) * | 2005-09-02 | 2010-05-04 | Canon Kabushiki Kaisha | Liquid container |
EP2670599A4 (en) * | 2011-01-31 | 2017-01-11 | Hewlett-Packard Development Company, L.P. | Printing systems utilizing inks with high solids content |
US20150210012A1 (en) * | 2012-07-30 | 2015-07-30 | Dws S.R.L. | System and Method for Mixing a Stereolithography Resin |
US9878496B2 (en) * | 2012-07-30 | 2018-01-30 | Dws S.R.L. | System and method for mixing a stereolithography resin |
WO2019230985A1 (en) * | 2018-06-01 | 2019-12-05 | キヤノン株式会社 | Image forming device |
US11009810B2 (en) | 2018-06-01 | 2021-05-18 | Canon Kabushiki Kaisha | Image forming apparatus |
Also Published As
Publication number | Publication date |
---|---|
CN1209578A (en) | 1999-03-03 |
KR19990018435A (en) | 1999-03-15 |
CN1109936C (en) | 2003-05-28 |
KR100234283B1 (en) | 1999-12-15 |
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Legal Events
Date | Code | Title | Description |
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AS | Assignment |
Owner name: SAMSUNG ELECTRONICS CO., LTD., KOREA, REPUBLIC OF Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:KIM, JONG-WOO;REEL/FRAME:009394/0998 Effective date: 19980610 |
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FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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FPAY | Fee payment |
Year of fee payment: 4 |
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FPAY | Fee payment |
Year of fee payment: 8 |
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REMI | Maintenance fee reminder mailed | ||
LAPS | Lapse for failure to pay maintenance fees | ||
LAPS | Lapse for failure to pay maintenance fees |
Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
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STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20110629 |